Question

Two supplementry angles are in the ratio of 2:7 find the angles

Answer 1

Answer -

let angles as 2x and 7x

2x + 7x = 180

9x = 180

x = 180/9

x = 20

2x = 2 × 20 = 40

7x = 7 × 20 = 140

The angles are 40 and 140 Degree.

Answer 2

Answer:

Let angles as 2x and 7x  

2x + 7x = 180  

9x = 180  

x = 180/9

x = 20  

2x = 2 × 20 = 40  

7x = 7 × 20 = 140  

The angles are 40 and 140 Degree.